Ballpoint pen



FIG. 1 is a front elevational view of the ballpoint pen showing our design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is an exploded front elevational view thereof;

FIG. 7 is an exploded perspective view thereof;

FIG. 8 is a perspective view with the cap positioned on the opposite end thereof; and,

FIG. 9 is a perspective view of FIG. 1.

The stippling shown on the surface of the ballpoint pen represents a surface texture. 

We claim the ornamental design for the ballpoint pen, as shown and described. 